Fix CPDFSDK_FormFillEnvironment destruction order

Fix CPDFSDK_FormFillEnvironment destruction order

This was broken in 6c659ab2.  Also fix m_PageMap naming while
we're at it to match conventions.

TEST=covered by forthcoming bug 662698 CL.

Committed: https://pdfium.googlesource.com/pdfium/+/2599ff7ae76a2e7514c1794281ccb0802d6df2bc

[Tom Sepez, 2016-11-08 20:20:02]

The CQ bit was checked by tsepez@chromium.org to run a CQ dry run

[commit-bot: I haz the power, 2016-11-08 20:20:12]

Dry run: CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[Tom Sepez, 2016-11-08 20:20:46]

tsepez@chromium.org changed reviewers:
+ thestig@chromium.org

[Tom Sepez, 2016-11-08 20:20:47]

Lei, ready for review.  First part of previous CL.

[Lei Zhang, 2016-11-08 20:40:56]

lgtm

[Tom Sepez, 2016-11-08 21:26:41]

The CQ bit was unchecked by tsepez@chromium.org

[Tom Sepez, 2016-11-08 21:26:43]

The CQ bit was checked by tsepez@chromium.org

[commit-bot: I haz the power, 2016-11-08 21:26:53]

CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[commit-bot: I haz the power, 2016-11-08 22:39:02]

Description was changed from

==========
Fix CPDFSDK_FormFillEnvironment destruction order

This was broken in 6c659ab2.  Also fix m_PageMap naming while
we're at it to match conventions.

TEST=covered by forthcoming bug 662698 CL.
==========

to

==========
Fix CPDFSDK_FormFillEnvironment destruction order

This was broken in 6c659ab2.  Also fix m_PageMap naming while
we're at it to match conventions.

TEST=covered by forthcoming bug 662698 CL.

Committed:
https://pdfium.googlesource.com/pdfium/+/2599ff7ae76a2e7514c1794281ccb0802d6d...
==========

[commit-bot: I haz the power, 2016-11-08 22:39:03]

Committed patchset #1 (id:1) as
https://pdfium.googlesource.com/pdfium/+/2599ff7ae76a2e7514c1794281ccb0802d6d...